Editraffic B-9 Operating Instructions

Pin Connections: Harness Model 801-4

FREQ

is reached. Each turn of wire must lay flat on top of the

previous turn.

when the loop sealant is applied.

PIN HARNESS COLOR FUNCTION

WHITE POWER, NEUTRAL or (-)*

BROWN OUTPUT A, NORMALLY OPEN

BLACK POWER, HOT or (+)*

RED LOOP

ORANGE LOOP

YELLOW OUTPUT A, COMMON

BLUE OUTPUT A, NORMALLY CLOSED

GREEN CHASSIS GROUND

VIOLET OUTPUT B, COMMON

GRAY OUTPUT B, NORMALLY OPEN

NOTE: All Contacts above are shown for power applied, loops connected and no vehicle present.

The Output B (pulse relay) always operates in Fail Secure mode (i.e., NO CALL is indicated during

failure conditions). * 24 VAC, 120 VAC, and 240 VAC versions of Model B detectors and 12 VDC and 24 VDC versions of Model B detectors are available, see label on detector.

Loop Installation

Mark the loop layout on the pavement. Remove sharp inside corners that can damage the loop wire insulation.

Set the saw to cut to a depth (typically 2" to 2.5") that insures a minimum of 1" from the top of the wire to pavement surface. The saw cut width should be larger than the wire diameter to avoid damage to the wire insulation when placed in the saw slot. Cut the loop and feeder slots. Remove all debris from the saw slot with compressed air. Check that the bottom of the slot is even.

It is highly recommended that a continuous length of wire be used to form the loop and feeder to the detector. Loop wire is typically 14, 16 , 18 or 20 AWG with cross-link polyethylene insulation. Use a wood stick or roller to insert the wire to the bottom of the saw slot (do not use sharp objects). Wrap the wire in the loop saw cut until the desired number of turns

The wire must be twisted together a minimum of 6 twists per foot from the end of the saw cut to the detector.

The wire must be held firmly in the slot with 1" pieces of backer rod every 1 to 2 feet. This prevents the wire from floating

Apply the sealant. The sealant selected should have good adhering properties with similar contraction and expansion characteristics to that of the pavement material.

LOOP PERIMETER (feet) NUMBER of TURNS

1/8" to 1/4" SAW SLOT

THE WIRE IS CONTINUOUSLY WOUND IN THE LOOP SAW SLOT FOR THE REQUIRED NUMBER OF TURNS (2 turns shown)

turn 2

turn 1

10 - 13

10-13 4 14-26 3

14 - 26 3

27-80 2

27 - 80

80-up 1

80 - up 1

FEEDER SLOT

REMOVE SHARP INSIDE CORNERS

THE WIRES MUST BE TWISTED TOGETHER 6 TWISTS PER FOOT FROM THE END OF THE SAW CUT TO THE DETECTOR

ROAD SURFACE

SEALANT

BACKER ROD 1" piece spaced

1" piece spaced about every 1'

LOOP WIRE

END OF SAW CUT

3 TURNS

DETECTOR

SAW SLOT

MIN

Operating Instructions

MODEL “B-9” SERIES

Single Channel Loop Detectors

Indicators

PWR Power LED

STATUS MEANING

Off On

If the supply voltage drops below 75% of the nominal line voltage, the power LED will turn “off.” This provides a visual check of low line voltage that can be caused by the start up of a

gate motor. The Model B operates with line voltage as low as 85 VAC.

DET Detect LED

STATUS MEANING

Off Solid On 4 Hz Flashing

FAIL Failed loop LED

STATUS MEANING

Off Solid On 1 Hz Flashing, 50% duty cycle 1 Hz Flashing, 5% duty cycle

Front Panel Switches (Momentary)

• FREQ Selects one of four loop frequencies: (HIGH / MH / ML / LOW).

(Also used to enter loop diagnostics mode).

• RESET Resets the detector to the “No Call”, i.e. no vehicle detected state.

No power or low power to detector Normal power to detector

No vehicle present over loop Vehicle present over loop Vehicle present over loop for less than 2 seconds (2 Sec. Delay)

Loop OK Open loop Shorted loop

Waiting for release of

switch to enter diagnostics mode

P/N 889-0204-00 Rev: June 2020 4 Model B-9 Operating Instructions

Internal DIP Switches

SENSITIVITIES

DEFAULT*

SW# FEATURE RANGE VALUE SW Pos

1,2,3 4 5 6 7 8

Sensitivity Output Delay Sensitivity Boost Pulse Mode Presence Hold Time Output B Mode

* Default reflects factory settings as shipped.

** B-#(DP) models are shipped with DIP switch 8 set OFF for Dual Presence Configuration.

0 -- 7 3 OFF-ON-ON On / Off Off OFF On / Off Off OFF Entry / Exit Entry OFF TruePres. / Limited Pres. TruePres. OFF Presence / Pulse Pulse ON **

Sensitivity (DIP Switches 1,2,3)

Sensitivity is set using internal DIP switches 1, 2, & 3 according to the following table.

SW# 0 1 2 3 4 5 6 7

OFF OFF OFF OFF ON ON ON ON

OFF OFF ON ON OFF OFF ON ON

OFF ON OFF ON OFF ON OFF ON

* 0 = Lowest, 3 = Normal, 7 = Highest

Output Delay (DIP Switch 4)

A two-second delay of Outputs A and B can be activated by setting DIP switch 4 to the ON position. Output delay is the time the detector outputs are delayed after a vehicle first enters the loop detection area. If the 2 second Output Delay feature is activated, the output relays will only be turned on after 2 seconds has passed with a vehicle continuously present in the loop detection area. If a vehicle leaves the loop detection area during the 2 second delay interval, detection is aborted and the next vehicle to enter the loop detection area will initiate a new full 2 second delay interval. By flashing the front panel DET LED at 4 Hz with a 50% duty cycle, the detector indicates that a vehicle is being detected but that the outputs are being delayed.

Sensitivity Boost (DIP Switch 5)

DIP switch 5 can be turned ON to increase sensitivity only during the detect period, without changing the sensitivity of a vacant loop. When a vehicle enters the loop, the detector then automatically boosts the loop sensitivity but only during the detect condition. As soon as no vehicle is detected, the detector immediately returns to the original sensitivity level. This feature helps prevent dropouts during the passage of high-bed vehicles and is particularly useful in sliding gate situations.

Pulse Mode (DIP Switch 6)

Output B is the pulse output. The output B relay can be programmed to output a pulse only upon vehicle entry over the loop or only upon vehicle exit from the loop. When DIP switch 6 is OFF, the detector will output an “entry pulse” each time a vehicle enters the loop detection area. When DIP switch 6 is ON, the detector will output an “exit pulse” each time a vehicle leaves the loop detection area. The factory default is OFF, i.e. entry pulse. (DIP switch 6 has no effect on Output A, the presence output).

Presence Hold Time (DIP Switch 7)

Output A is the presence output. The detector has two presence hold time modes: TruePresenceTM and Limited Presence. Both modes output a “Call”, i.e. vehicle detected, for as long as a vehicle is present in the loop detection area. TruePresenceTM will hold the Call for as long as the vehicle is present and power is not removed or reset applied. Limited Presence will typically hold the Call output for about one to three hours. The TruePresenceTM time provides a detection output condition for the entire time the vehicle is present in the loop zone. The TruePresenceTM time applies only for normal size automobiles and trucks and for normal size loops (approximately 12 ft2 — 120 ft2). The factory default for DIP switch 7 is OFF, i.e. TruePresenceTM mode. By setting DIP switch 7 ON, the detector will operate in Limited Presence mode.

Output B Mode (DIP Switch 8)

The Output B relay has two modes of operation; either Pulse (ON) or Presence (OFF). When in the pulse mode, the pulse can be either pulse on entry or pulse on exit (see “Pulse Mode – DIP switch 6”). When in the presence mode, the presence hold time is the same as Output A (see “Presence Hold Time - DIP switch 7).

Frequency

Loop frequency is controlled by the FREQ switch on the front panel. Sometimes when loops are in close proximity, it may be necessary to select different frequencies for each loop to avoid loop interference -commonly known as crosstalk. Four frequencies labeled “High” to “Low” are available. Each time the FREQ button is momentarily pushed, the next higher frequency is selected. The next frequency after High is Low. Note: Immediately after each change of frequency, the detector is automatically reset; therefore there is no need to push the RESET button.

Call Memory

When power is removed for 2 seconds or less, the detector automatically “remembers” if a vehicle was present and a Call was in effect. When power is restored, the detector will continue to output a Call until the vehicle leaves the loop. (Power loss or dips of 2 seconds or less will not bring a gate arm down onto cars as they wait at the gate).

Failed Loop Diagnostics

The FAIL LED indicates whether or not the loop is currently within tolerance. If out of tolerance, the LED indicates whether the loop circuit is shorted or open. If and when the loop returns to within tolerance, the FAIL LED will resume the OFF condition indicating “Loop OK”.

Additionally, the detector automatically stores the last loop failure type in non-volatile memory. To determine the last loop failure, press the FREQ key for three seconds or more. When the FAIL LED begins flashing at 1 Hz with 5% duty cycle, release the FREQ key. The detector will then display the last loop failure type detected (if any). This indication will be displayed one time for about fifteen seconds unless terminated by pressing the RESET or FREQ key. The non-volatile memory used to store the last loop failure type is automatically cleared each time it is interrogated.

Fail Mode

Two versions of the Model B detector are manufactured: Fail Safe, Model B-#, and Fail Secure, Model B-#(S). In the Fail Safe version, when the loop fails in any manner or power is removed, the Output A relay assumes the state indicating Call. In the Fail Secure version, when the loop fails in any manner or power is removed, the Output A relay assumes the state indicating No Call.

N.O. Contact State FAIL SAFE OPERATION

Relay A

Relay B

Note 1: The Output B pulse relay always operates in Fail Secure mode, i.e. no Call is indicated during failure

conditions.

Power Failure Loop Failure

Call Call No Call No Call

No Call No Call No Call No Call

FAIL SECURE OPERATION

Power Failure Loop Failure

Pin Connections:

PIN FUNCTION

POWER, HOT or (+)*

POWER, NEUTRAL or (-)*

LOOP

OUTPUT A, NORMALLY CLOSED

OUTPUT A, COMMON

OUTPUT A, NORMALLY OPEN

OUTPUT B, COMMON

OUTPUT B, NORMALLY OPEN

OUTPUT B, NORMALLY CLOSED

NO CONNECTION

2 3